The Brace Tool Gauge Ring is used to verify or gauge the drift size of a wellbore, and to clear minor build-ups of scale or paraffin in the tubing. With its functionality, it helps ensure that the drift size of the tubing meets specifications and it also helps in identifying areas where the tubing may be constricted or obstructed. Another use of this tool is to properly fit nipples and determining their depth within the well bore.